A/C Compressor For 2004-2012 Mitsubishi Galant & 2006-2011 Eclipse 2.4L – Complete Replacement Guide (TEM255606)
Summary: Is your Mitsubishi Galant (2004-2012) or Eclipse (2006-2011) 2.4L blowing warm air? The A/C compressor is the heart of your vehicle's cooling system. This comprehensive guide covers everything you need to know about the TEM255606 A/C compressor — including specifications, fitment data, common failure symptoms, installation tips, and why this replacement compressor from Koeep is the ideal solution for your Mitsubishi.
🚗 Product Overview & Vehicle Fitment
The TEM255606 A/C Compressor (also known as CO-11159T) is a direct OEM replacement air conditioning compressor designed for select Mitsubishi models equipped with the 2.4L engine. It replaces multiple OEM part numbers and ensures your cabin stays cool even during the hottest summer days.
✅ Compatible Vehicles
| Make | Model | Year Range | Engine |
|---|---|---|---|
| Mitsubishi | Galant | 2004 – 2012 | 2.4L |
| Mitsubishi | Eclipse | 2006 – 2011 | 2.4L |
| Mitsubishi | Endeavor | 2011 | 3.8L |
* Note: The Endeavor 2011 3.8L uses the same compressor type; verify fitment before purchase.
🔧 Detailed Technical Specifications
This TEM255606 A/C Compressor from Koeep is engineered to meet or exceed OE specifications. Below are the key technical details every mechanic and DIY enthusiast should know:
| Specification | Detail |
|---|---|
| Compressor Type | MSC105 – Scroll/Swash Plate Type |
| Refrigerant | R-134A |
| Voltage | 12V DC |
| Pulley Design | Multi-groove serpentine belt (V-ribbed) |
| Condition | 100% Brand New (not remanufactured) |
| Fitment Type | Direct Bolt-On Replacement (OE-style) |
| Clutch Included | Yes – Full clutch assembly |
🔄 Interchangeable OEM Part Numbers
This compressor replaces the following original equipment manufacturer (OEM) and aftermarket part numbers:
⚠️ Common A/C Compressor Failure Symptoms
If your Mitsubishi is experiencing any of the following issues, your A/C compressor may need immediate attention. The TEM255606 unit from Koeep's product page is the perfect drop-in replacement to resolve these problems:
- ❄️ Warm air from vents – The compressor fails to pressurize refrigerant, resulting in insufficient cooling.
- 🔊 Loud grinding or squealing noises – Worn bearings or a failing clutch assembly generate abnormal sounds from the compressor area.
- 🔄 A/C clutch not engaging – The electromagnetic clutch fails to lock, preventing the compressor from cycling.
- 💧 Refrigerant leaks – Visible oil residue or dye around the compressor shaft seal indicates internal failure.
- ⚡ Circuit breaker tripping – A seized compressor can draw excessive current, blowing fuses or tripping the A/C relay.
🛠️ Installation Guide & Best Practices
While replacing the compressor on a 2.4L Mitsubishi Galant or Eclipse is a straightforward bolt-on job, following these best practices will ensure long-term reliability:
- Flush the system – Always flush the A/C lines, condenser, and evaporator to remove debris and old oil from the failed compressor.
- Replace the receiver-drier or accumulator – This is critical to prevent moisture and contaminants from damaging your new TEM255606 compressor.
- Replace the expansion valve or orifice tube – A clogged metering device will starve your new compressor of proper refrigerant flow.
- Add the correct PAG oil – The MSC105 compressor requires PAG 46 oil. Check the included oil charge; typically 150-180cc is needed for a dry system.
- Evacuate and recharge – Pull a deep vacuum (500 microns or lower) for at least 30 minutes before charging with R-134A to the specified weight (typically 21-25 oz for these models).
💡 Pro Tip: Always use a torque wrench when tightening the compressor mounting bolts. The factory specification is 18-25 ft-lbs for the bracket bolts and 15-18 ft-lbs for the clutch hub nut. Overtightening can warp the compressor housing.
📊 Comparison: New TEM255606 vs. Remanufactured vs. Used
| Feature | New (Koeep TEM255606) | Remanufactured | Used / Junkyard |
|---|---|---|---|
| Reliability | ⭐⭐⭐⭐⭐ Excellent | ⭐⭐⭐ Moderate | ⭐ Poor |
| Warranty | 1-Year Warranty | 90 days – 1 year (varies) | As-is / No warranty |
| Internal Seals | All-new Viton seals | Replaced only if damaged | Original – high failure risk |
| Bearings | New high-quality bearings | May use refurbished bearings | Worn / questionable |
| Price Value | ⭐⭐⭐⭐ Best value | ⭐⭐⭐ Cheaper upfront | ⭐⭐ Risky gamble |
Bottom line: Investing in a brand new TEM255606 compressor from Koeep eliminates the uncertainty associated with remanufactured or used units. You get a full clutch assembly, fresh seals, and the peace of mind that comes with a manufacturer-backed warranty.
❓ Frequently Asked Questions
Q: Does the TEM255606 come with the clutch assembly installed?
A: Yes. The compressor ships with the full electromagnetic clutch assembly, pulley, and coil pre-installed. It is a complete, bolt-on ready unit.
Q: What type of PAG oil should I use with this compressor?
A: Use PAG 46 oil. Most new compressors come pre-filled with the correct amount, but always verify before installation. For a completely dry system, you may need to add 6-8 oz total including what's in the compressor.
Q: Will this fit my 2008 Mitsubishi Eclipse GS with the 2.4L engine?
A: Absolutely. The 2006-2011 Mitsubishi Eclipse 2.4L (both GS and SE trims) is fully compatible with the TEM255606 compressor.
Q: Do I need to replace any other parts when installing a new compressor?
A: Yes. It is highly recommended to replace the receiver-drier (accumulator), expansion valve, and all O-ring seals simultaneously. This prevents contamination and moisture from damaging your new investment.
Q: How much refrigerant does the 2.4L Galant/Eclipse system need?
A: The factory specification for R-134A is typically 21–25 ounces (approximately 600–700 grams). Always check the under-hood sticker for your specific vehicle.
📚 External Sources & Trust Metrics
This guide is based on verified technical data from trusted industry sources:
- ✔ NAPA Auto Parts — Official listing for TEM255606 confirms fitment for 2004-2012 Galant, 2006-2011 Eclipse, and 2011 Endeavor. View NAPA listing
- ✔ CNCEST / Oukaning — Cross-references part numbers including MN185233, MR513358, MSC105CA, and 275847. View cross-reference
- ✔ ECC PP Auto Parts — Confirms compressor type (MSC105), refrigerant (R-134A), and 12V DC voltage. View specifications
- ✔ eBay Motors — Multiple listings confirm the CO-11159T cross-reference and direct fitment for Galant/Eclipse 2.4L. View eBay listing
- ✔ YourMechanic — Industry-recognized platform confirming AC compressor replacement as a common service on Mitsubishi Galant. View service data
🏁 Final Verdict
If you own a 2004-2012 Mitsubishi Galant or a 2006-2011 Mitsubishi Eclipse with the 2.4L engine, the TEM255606 A/C Compressor is the definitive replacement choice. It offers direct OEM fitment, includes a complete clutch assembly, uses R-134A refrigerant, and comes backed by a solid warranty.
Don't suffer through another summer without cold A/C. 👉 Get the TEM255606 Compressor at Koeep.com

